Re: [LAU] 3.10-rt kernels unusable

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To: linux-audio-user <linux-audio-user@...>
Date: Wednesday, August 28, 2013 - 1:07 pm

Hi Fernando, Victor and Raffaele,

On Wed, 2013-08-28 at 08:12 +0200, Raffaele Morelli wrote:

The kernel build for Arch was build using it's default AUR config, the
kernel build for Ubuntu Quantal is build using a different config, but
not regarding to dynticks, NO_HZ is enabled. It's on 64 bit
architecture.

[rocketmouse@archlinux ~]$ grep _HZ /mnt/q/boot/config-3.10.9-rt5
CONFIG_NO_HZ_COMMON=y
# CONFIG_HZ_PERIODIC is not set
CONFIG_NO_HZ_IDLE=y
# CONFIG_NO_HZ_FULL is not set
CONFIG_NO_HZ=y
# CONFIG_HZ_100 is not set
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
CONFIG_HZ_1000=y
CONFIG_HZ=1000
[rocketmouse@archlinux ~]$ grep _HZ linux-rt/config.x86_64
CONFIG_NO_HZ_COMMON=y
# CONFIG_HZ_PERIODIC is not set
CONFIG_NO_HZ_IDLE=y
# CONFIG_NO_HZ_FULL is not set
CONFIG_NO_HZ=y
# CONFIG_HZ_100 is not set
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
CONFIG_HZ_1000=y
CONFIG_HZ=1000
[rocketmouse@archlinux ~]$ diff /mnt/q/boot/config-3.10.9-rt5 linux-rt/config.x86_64 | grep CONFIG_MK8
< CONFIG_MK8=y

I subscribed to linux-rt-users@vger.kernel.org on Monday, but I've got
no time to check log files etc., perhaps next month.

FWIW for the non-rt-kernel NO_HZ is enabled too.

[rocketmouse@archlinux ~]$ uname -rm
3.10.9-1-ARCH x86_64
[rocketmouse@archlinux ~]$ zgrep _HZ /proc/config.gz
CONFIG_NO_HZ_COMMON=y
# CONFIG_HZ_PERIODIC is not set
CONFIG_NO_HZ_IDLE=y
# CONFIG_NO_HZ_FULL is not set
CONFIG_NO_HZ=y
CONFIG_RCU_FAST_NO_HZ=y
# CONFIG_HZ_100 is not set
# CONFIG_HZ_250 is not set
CONFIG_HZ_300=y
# CONFIG_HZ_1000 is not set
CONFIG_HZ=300

Regards,
Ralf

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Messages in current thread:
[LAU] 3.10-rt kernels unusable, Ralf Mardorf, (Mon Aug 26, 9:01 am)
Re: [LAU] 3.10-rt kernels unusable, Fernando Lopez-Lezcano, (Wed Aug 28, 5:57 am)
Re: [LAU] 3.10-rt kernels unusable, Raffaele Morelli, (Wed Aug 28, 6:12 am)
Re: [LAU] 3.10-rt kernels unusable, Fernando Lopez-Lezcano, (Wed Sep 25, 1:31 pm)
Re: [LAU] 3.10-rt kernels unusable, Ralf Mardorf, (Wed Aug 28, 1:07 pm)
Re: [LAU] 3.10-rt kernels unusable, , (Mon Aug 26, 6:28 pm)
Re: [LAU] 3.10-rt kernels unusable, Ralf Mardorf, (Mon Aug 26, 7:10 pm)
Re: [LAU] 3.10-rt kernels unusable, Joakim Hernberg, (Mon Aug 26, 3:02 pm)
Re: [LAU] 3.10-rt kernels unusable, Victor A. Stoichita, (Wed Aug 28, 9:32 am)
Re: [LAU] 3.10-rt kernels unusable, Ralf Mardorf, (Mon Aug 26, 7:18 pm)
Re: [LAU] 3.10-rt kernels unusable, Ralf Mardorf, (Tue Aug 27, 6:31 pm)
Re: [LAU] 3.10-rt kernels unusable, Victor A. Stoichita, (Mon Aug 26, 11:17 am)
Re: [LAU] 3.10-rt kernels unusable, Ralf Mardorf, (Mon Aug 26, 1:56 pm)
Re: [LAU] 3.10-rt kernels unusable, Will Godfrey, (Mon Aug 26, 4:26 pm)